diff --git a/.appveyor.yml b/.appveyor.yml
index b68f19cf..c14d8ffe 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -10,7 +10,7 @@ configuration:
     - Release
 build_script:
     - git submodule update --init --recursive
-    - cmake -DAMGCL_BUILD_TESTS=ON -DAMGCL_BUILD_EXAMPLES=ON . -Bbuild
+    - cmake -DAMGCL_BUILD_TESTS=ON -DAMGCL_BUILD_EXAMPLES=ON -DAMGCL_DISABLE_RARE_COMPONENTS=ON . -Bbuild
     - cmake --build build --config Release
 test_script:
     - cd build
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c31f6ee0..831273b2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -237,6 +237,16 @@ endif()
 if (AMGCL_MASTER_PROJECT)
     option(AMGCL_BUILD_TESTS    OFF)
     option(AMGCL_BUILD_EXAMPLES OFF)
+    option(AMGCL_DISABLE_RARE_COMPONENTS OFF)
+
+    if(AMGCL_DISABLE_RARE_COMPONENTS)
+        add_definitions(
+            -DAMGCL_RUNTIME_DISABLE_MULTICOLOR_GS
+            -DAMGCL_RUNTIME_DISABLE_PARALLEL_ILU0
+            -DAMGCL_RUNTIME_DISABLE_SPAI1
+            -DAMGCL_RUNTIME_DISABLE_CHEBYSHEV
+            )
+    endif()
 
     add_subdirectory(docs)
 
diff --git a/amgcl/relaxation/runtime.hpp b/amgcl/relaxation/runtime.hpp
index 85059313..12441eb7 100644
--- a/amgcl/relaxation/runtime.hpp
+++ b/amgcl/relaxation/runtime.hpp
@@ -94,10 +94,10 @@ inline std::istream& operator>>(std::istream &in, type &r)
     std::string val;
     in >> val;
 
-    if (val == "multicolor_gauss_seidel")
-        r = multicolor_gauss_seidel;
-    else if (val == "gauss_seidel")
+    if (val == "gauss_seidel")
         r = gauss_seidel;
+    else if (val == "multicolor_gauss_seidel")
+        r = multicolor_gauss_seidel;
     else if (val == "ilu0")
         r = ilu0;
     else if (val == "parallel_ilu0")
@@ -157,15 +157,19 @@ void process_rap(runtime::relaxation::type relaxation, const Func &func) {
         case runtime::relaxation::gauss_seidel:
             process_rap<Backend, amgcl::relaxation::gauss_seidel>(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_MULTICOLOR_GS
         case runtime::relaxation::multicolor_gauss_seidel:
             process_rap<Backend, amgcl::relaxation::multicolor_gauss_seidel>(func);
             break;
+#endif
         case runtime::relaxation::ilu0:
             process_rap<Backend, amgcl::relaxation::ilu0>(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_PARALLEL_ILU0
         case runtime::relaxation::parallel_ilu0:
             process_rap<Backend, amgcl::relaxation::parallel_ilu0>(func);
             break;
+#endif
         case runtime::relaxation::iluk:
             process_rap<Backend, amgcl::relaxation::iluk>(func);
             break;
@@ -178,12 +182,18 @@ void process_rap(runtime::relaxation::type relaxation, const Func &func) {
         case runtime::relaxation::spai0:
             process_rap<Backend, amgcl::relaxation::spai0>(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_SPAI1
         case runtime::relaxation::spai1:
             process_rap<Backend, amgcl::relaxation::spai1>(func);
             break;
+#endif
+#ifndef AMGCL_RUNTIME_DISABLE_CHEBYSHEV
         case runtime::relaxation::chebyshev:
             process_rap<Backend, amgcl::relaxation::chebyshev>(func);
             break;
+#endif
+        default:
+            precondition(false, "Unsupported relaxation value");
     }
 }
 
diff --git a/amgcl/runtime.hpp b/amgcl/runtime.hpp
index 26b0b16c..94114313 100644
--- a/amgcl/runtime.hpp
+++ b/amgcl/runtime.hpp
@@ -179,6 +179,7 @@ process_amg(
                 amgcl::relaxation::gauss_seidel
                 >(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_MULTICOLOR_GS
         case runtime::relaxation::multicolor_gauss_seidel:
             process_amg<
                 Backend,
@@ -186,6 +187,7 @@ process_amg(
                 amgcl::relaxation::multicolor_gauss_seidel
                 >(func);
             break;
+#endif
         case runtime::relaxation::ilu0:
             process_amg<
                 Backend,
@@ -193,6 +195,7 @@ process_amg(
                 amgcl::relaxation::ilu0
                 >(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_PARALLEL_ILU0
         case runtime::relaxation::parallel_ilu0:
             process_amg<
                 Backend,
@@ -200,6 +203,7 @@ process_amg(
                 amgcl::relaxation::parallel_ilu0
                 >(func);
             break;
+#endif
         case runtime::relaxation::iluk:
             process_amg<
                 Backend,
@@ -228,6 +232,7 @@ process_amg(
                 amgcl::relaxation::spai0
                 >(func);
             break;
+#ifndef AMGCL_RUNTIME_DISABLE_SPAI1
         case runtime::relaxation::spai1:
             process_amg<
                 Backend,
@@ -235,6 +240,8 @@ process_amg(
                 amgcl::relaxation::spai1
                 >(func);
             break;
+#endif
+#ifndef AMGCL_RUNTIME_DISABLE_CHEBYSHEV
         case runtime::relaxation::chebyshev:
             process_amg<
                 Backend,
@@ -242,6 +249,9 @@ process_amg(
                 amgcl::relaxation::chebyshev
                 >(func);
             break;
+#endif
+        default:
+            precondition(false, "Unsupported relaxation value");
     }
 }
 
diff --git a/tests/test_solver.hpp b/tests/test_solver.hpp
index d3b9b4d6..fbed3f03 100644
--- a/tests/test_solver.hpp
+++ b/tests/test_solver.hpp
@@ -105,16 +105,24 @@ void test_problem(
     };
 
     amgcl::runtime::relaxation::type relaxation[] = {
-        amgcl::runtime::relaxation::spai0,
-        amgcl::runtime::relaxation::spai1,
-        amgcl::runtime::relaxation::damped_jacobi,
-        amgcl::runtime::relaxation::gauss_seidel,
-        amgcl::runtime::relaxation::multicolor_gauss_seidel,
-        amgcl::runtime::relaxation::ilu0,
-        amgcl::runtime::relaxation::parallel_ilu0,
-        amgcl::runtime::relaxation::iluk,
-        amgcl::runtime::relaxation::ilut,
-        amgcl::runtime::relaxation::chebyshev
+        amgcl::runtime::relaxation::spai0
+#ifndef AMGCL_RUNTIME_DISABLE_SPAI1
+      , amgcl::runtime::relaxation::spai1
+#endif
+      , amgcl::runtime::relaxation::damped_jacobi
+      , amgcl::runtime::relaxation::gauss_seidel
+#ifndef AMGCL_RUNTIME_DISABLE_MULTICOLOR_GS
+      , amgcl::runtime::relaxation::multicolor_gauss_seidel
+#endif
+      , amgcl::runtime::relaxation::ilu0
+#ifndef AMGCL_RUNTIME_DISABLE_PARALLEL_ILU0
+      , amgcl::runtime::relaxation::parallel_ilu0
+#endif
+      , amgcl::runtime::relaxation::iluk
+      , amgcl::runtime::relaxation::ilut
+#ifndef AMGCL_RUNTIME_DISABLE_CHEBYSHEV
+      , amgcl::runtime::relaxation::chebyshev
+#endif
     };
 
     amgcl::runtime::solver::type solver[] = {